Results 1 to 10 of about 96,928 (161)

4D In-Situ Microscopy of Aerosol Filtration in a Wall Flow Filter. [PDF]

Materials (Basel), 2020
The transient nature of the internal pore structure of particulate wall flow filters, caused by the continuous deposition of particulate matter, makes studying their flow and filtration characteristics challenging. In this article we present a new methodology and first experimental demonstration of time resolved in-situ synchrotron micro X-ray computed
Jones MP, Storm M, York APE, Hyde TI, Hatton GD, Greenaway AG, Haigh SJ, Eastwood DS.   +7 more
europepmc   +6 more sources

Prediction Capabilities of a One-dimensional Wall-flow ‎Particulate Filter Model [PDF]

Journal of Applied and Computational Mechanics, 2022
This work is focused on the formulation of a numerical model for prediction of flow field inside a particulate filter. More specifically, a one-dimensional mathematical model of the gas flow in a particulate trap-cell is deduced and solved numerically ...
Andrea Impiombato, Cesare Biserni, Massimo Milani, Luca Montorsi   +3 more
doaj   +2 more sources

Investigation of the Rearrangement of Reactive–Inert Particulate Structures in a Single Channel of a Wall-Flow Filter

Separations, 2022
Wall-flow filters are a standard component in exhaust gas aftertreatment and have become indispensable in vehicles. Ash and soot particles generated during engine combustion are deposited in diesel or gasoline particulate filters.
Julia R. D. Thieringer, Nicolas Hafen, Jörg Meyer, Mathias J. Krause, Achim Dittler   +4 more
doaj   +3 more sources

Catalytic Wall Flow Filters for Soot Abatement from Biomass Boilers

Chemical Engineering Transactions, 2016
In recent years rising costs of fossil fuels and, on the other hand, the availability of economic incentives and the development of advanced equipment solutions has made biomass combustion an attractive and efficient alternative for the production of ...
V. Palma, E. Meloni, M. Caldera, D. Lipari, V. Pignatelli, V. Gerardi   +5 more
doaj   +2 more sources

Impact of Vein Wall Hyperelasticity and Blood Flow Turbulence on Hemodynamic Parameters in the Inferior Vena Cava with a Filter

Micromachines
Inferior vena cava (IVC) filters are vital in preventing pulmonary embolism (PE) by trapping large blood clots, especially in patients unsuitable for anticoagulation.
Jafar Moradicheghamahi, Debkalpa Goswami
doaj   +3 more sources

Evaluation of hemodynamic effects of different inferior vena cava filter heads using computational fluid dynamics

Frontiers in Bioengineering and Biotechnology, 2022
Inferior vena cava (IVC) filters are used to prevent pulmonary embolism in patients with deep vein thrombosis for whom anticoagulation is unresponsive. The head is a necessary structure for an Inferior vena cava filter (IVCF) in clinic use.
Mingrui Li, Jingying Wang, Wen Huang, Yue Zhou, Xue Song, Xue Song   +5 more
doaj   +1 more source

Simulation of Dynamic Rearrangement Events in Wall-Flow Filters Applying Lattice Boltzmann Methods

Fluids, 2023
Wall-flow filters are applied in the exhaust treatment of internal combustion engines for the removal of particulate matter (PM). Over time, the pressure drop inside those filters increases due to the continuously introduced solid material, which forms ...
Nicolas Hafen, Jan E. Marquardt, Achim Dittler, Mathias J. Krause   +3 more
doaj   +1 more source

Numerical Study of the Flow of Pollutants during Air Purification, Taking into Account the Use of Eco-Friendly Material for the Filter—Mycelium

Applied Sciences, 2023
To improve air quality, it is customary to apply technological measures to isolate or retain pollutants by influencing the polluted stream in various ways to effectively remove the pollutants.
Vaidotas Vaišis, Aleksandras Chlebnikovas, Raimondas Jasevičius   +2 more
doaj   +1 more source

Investigation of the Effects of an Inferior Vena Cava Filter and Captured Clot Size on the Hemodynamic Parameters in Non-Newtonian Turbulent Pulsatile Blood Flow

Applied Bionics and Biomechanics, 2023
In this computational fluid dynamics (CFD)-based study, the effects of inferior vena cava (IVC) filter implantation on the risk of IVC thrombosis have been investigated using different hemodynamic parameters, including time-averaged wall shear stress ...
Jafar Moradicheghamahi, Muhammad Qasim, Sohrab Jafarpour, Hamed Farokhi   +3 more
doaj   +1 more source

Tracking Carotid Artery Wall Motion Using an Unscented Kalman Filter and Data Fusion

IEEE Access, 2020
Analyzing the motion of the common carotid artery (CCA) wall yields effective indicators for atherosclerosis. In this work, we propose a state-space model and a tracking method for estimating the time-varying CCA wall radius from a B-mode ultrasound ...
Jan Dorazil, Rene Repp, Thomas Kropfreiter, Richard Pruller, Kamil Riha, Franz Hlawatsch   +5 more
doaj   +1 more source